400,000 402,500 N 03m 00 Scale 1:20,000 Page size: A3 Projection: GDA 1994 MGA Zone 50 Maralla Road 6,487,500 6,487,500 LEGEND Tonkin Grade Separation project boundary Perth to Darwin National Highway project boundary DER ASS Risk Mapping Class 1 (High to moderate risk) Class 2 (Moderate to low risk) The B roadway 6,485,000 6,485,000 The Promenade 6,482,500 6,482,500 400,000 402,500 Date: Figure No: Source & Notes 27.01.2015 Main Roads WA DER ASS Riak Mapping from DER. MXT: DER Acid Sulfate Soils Cadastre from MRWA (August 2014) 4483AA_18_GIS009_2 5C Aerial imagery from Landgate (August 2014) File Name: Preliminary Acid Sulfate Soils Investigation Risk Mapping 4483AA_18_F005C_GIS 402,500 405,000 N 03m 00 Strachan Road Scale 1:20,000 Page size: A3 Projection: GDA 1994 MGA Zone 50 6,495,000 6,495,000 Railway Parade LEGEND Tonkin Grade Separation project boundary Perth to Darwin National Highway project boundary DER ASS Risk Mapping Class 1 (High to moderate risk) Class 2 (Moderate to low risk) Stock Road 6,492,500 6,492,500 Warbrook Road 6,490,000 6,490,000 402,500 405,000 Date: Figure No: Source & Notes 27.01.2015 Main Roads WA DER ASS Riak Mapping from DER. MXT: DER Acid Sulfate Soils Cadastre from MRWA (August 2014) 4483AA_18_GIS009_2 5D Aerial imagery from Landgate (August 2014) File Name: Preliminary Acid Sulfate Soils Investigation Risk Mapping 4483AA_18_F005D_GIS 402,500 h 405,000 R o a d N 03m 00 Scale 1:20,000 Page size: A3 Projection: GDA 1994 MGA Zone 50 6,502,500 6,502,500 LEGEND Tonkin Grade Separation project boundary Perth to Darwin National Highway project boundary DER ASS Risk Mapping 6,500,000 Class 1 (High to moderate risk) 6,500,000 Class 2 (Moderate to low risk) Muchea South Road 6,497,500 Neaves Road 6,497,500 West Road 402,500 405,000 Date: Figure No: Source & Notes 27.01.2015 Main Roads WA DER ASS Riak Mapping from DER. MXT: DER Acid Sulfate Soils Cadastre from MRWA (August 2014) 4483AA_18_GIS009_2 5E Aerial imagery from Landgate (August 2014) File Name: Preliminary Acid Sulfate Soils Investigation Risk Mapping 4483AA_18_F005E_GIS 402,500 405,000 N 03m 00 Scale 1:20,000 Page size: A3 Projection: GDA 1994 MGA Zone 50 B r an d H i 6,507,500 g 6,507,500 h w a y LEGEND Tonkin Grade Separation project boundary Perth to Darwin National Highway project boundary DER ASS Risk Mapping Class 1 (High to moderate risk) Class 2 (Moderate to low risk) G re a t 6,505,000 E 6,505,000 a s te rn H ig h w a y M u ch ea S o u t h R o a d 6,502,500 6,502,500 402,500 405,000 Date: Figure No: Source & Notes 27.01.2015 Main Roads WA DER ASS Riak Mapping from DER. MXT: DER Acid Sulfate Soils Cadastre from MRWA (August 2014) 4483AA_18_GIS009_2 5F Aerial imagery from Landgate (August 2014) File Name: Preliminary Acid Sulfate Soils Investigation Risk Mapping 4483AA_18_F005F_GIS 397,500 400,000 N SP2 )" 03m 00 Marshall Road Scale 1:20,000 Page size: A3 6,475,000 Projection: GDA 1994 MGA Zone 50 6,475,000 Beechboro Road North Road Beechboro Reid Highway Benara Road LEGEND 6,472,500 )" Sampling point 6,472,500 Tonkin Grade Separation project boundary Perth to Darwin National Highway project boundary ASS Environmental Risk Classification High Moderate Morley Drive Walter Road East 6,470,000 6,470,000 T o n k i n H Collier Road i g h w a ad y o R rd fo ld ui G SP1 )" 397,500 400,000 Source & Notes Date: Figure No: Preliminary sampling locations and 27.01.2015 Main Roads WA Sampling locations and Acid sulfate soils risk mapping from Coffey (October 2014) MXT: 6A Cadastre from MRWA (August 2014) 4483AA_18_GIS012_1 ASS environmental risk classification Aerial imagery from Landgate (August 2014) File Name: Preliminary Acid Sulfate Soils Investigation 4483AA_18_F006A_GIS 395,000 397,500 400,000 6,482,500 N 6,482,500 03m 00 Scale 1:20,000 Page size: A3 Projection: GDA 1994 MGA Zone 50 Gnangara Road Beechboro Road North Road Beechboro 6,480,000 6,480,000 Park Street LEGEND )" Sampling point Tonkin Grade Separation project boundary Perth to Darwin National Highway project boundary ASS Environmental Risk Classification High Moderate 6,477,500 6,477,500 He pb ur n A ven ue SP3 )" orth 395,000 397,500 N 400,000 Source & Notes Date: Figure No: Preliminary sampling locations and 27.01.2015 Main Roads WA Sampling locations and Acid sulfate soils risk mapping from Coffey (October 2014) MXT: 6B Cadastre from MRWA (August 2014) 4483AA_18_GIS012_1 ASS environmental risk classification Aerial imagery from Landgate (August 2014) File Name: Preliminary Acid Sulfate Soils Investigation 4483AA_18_F006B_GIS 400,000 402,500 N 03m 00 Scale 1:20,000 Page size: A3 SP4 Projection: GDA 1994 MGA Zone 50 )" Maralla Road 6,487,500 6,487,500 LEGEND )" Sampling point Tonkin Grade Separation project boundary Perth to Darwin National Highway project boundary ASS Environmental Risk Classification High Moderate The B roadway 6,485,000 6,485,000 The Promenade 6,482,500 6,482,500 400,000 402,500 Source & Notes Date: Figure No: Preliminary sampling locations and 27.01.2015 Main Roads WA Sampling locations and Acid sulfate soils risk mapping from Coffey (October 2014) MXT: 6C Cadastre from MRWA (August 2014) 4483AA_18_GIS012_1 ASS environmental risk classification Aerial imagery from Landgate (August 2014) File Name: Preliminary Acid Sulfate Soils Investigation 4483AA_18_F006C_GIS 402,500 405,000 N 03m 00 Strachan Road Scale 1:20,000 Page size: A3 Projection: GDA 1994 MGA Zone 50 6,495,000 6,495,000 Railway Parade LEGEND )" Sampling point Tonkin Grade Separation project boundary Perth to Darwin National Highway project boundary SP5 ASS Environmental Risk Classification )" High Moderate Low Stock Road 6,492,500 6,492,500 Warbrook Road 6,490,000 6,490,000 402,500 405,000 Source & Notes Date: Figure No: Preliminary sampling locations and 27.01.2015 Main Roads WA Sampling locations and Acid sulfate soils risk mapping from Coffey (October 2014) MXT: 6D Cadastre from MRWA (August 2014) 4483AA_18_GIS012_1 ASS environmental risk classification Aerial imagery from Landgate (August 2014) File Name: Preliminary Acid Sulfate Soils Investigation 4483AA_18_F006D_GIS 402,500 h 405,000 R o a d N 03m 00 Scale 1:20,000 Page size: A3 Projection: GDA 1994 MGA Zone 50 6,502,500 6,502,500 LEGEND )" Sampling point Tonkin Grade Separation project boundary Perth to Darwin National Highway project boundary 6,500,000 ASS Environmental Risk Classification 6,500,000 High Moderate Low Muchea South Road SP6 )" 6,497,500 Neaves Road 6,497,500 West Road 402,500 405,000 Source & Notes Date: Figure No: Preliminary sampling locations and 27.01.2015 Main Roads WA Sampling locations and Acid sulfate soils risk mapping from Coffey (October 2014) MXT: 6E Cadastre from MRWA (August 2014) 4483AA_18_GIS012_1 ASS environmental risk classification Aerial imagery from Landgate (August 2014) File Name: Preliminary Acid Sulfate Soils Investigation 4483AA_18_F006E_GIS 402,500 405,000 N 03m 00 Scale 1:20,000 Page size: A3 Projection: GDA 1994 MGA Zone 50 B r an d H i 6,507,500 g 6,507,500 h w a y LEGEND SP7 )" )" Sampling point Tonkin Grade Separation project boundary Perth to Darwin National Highway project boundary ASS Environmental Risk Classification Moderate Low G re a t 6,505,000 E 6,505,000 a s te rn H ig h w a y M u ch ea S o u t h R o a d 6,502,500 6,502,500 402,500 405,000 Source & Notes Date: Figure No: Preliminary sampling locations and 27.01.2015 Main Roads WA Sampling locations and Acid sulfate soils risk mapping from Coffey (October 2014) MXT: 6F Cadastre from MRWA (August 2014) 4483AA_18_GIS012_1 ASS environmental risk classification Aerial imagery from Landgate (August 2014) File Name: Preliminary Acid Sulfate Soils Investigation 4483AA_18_F006F_GIS Appendices APPENDIX A Geomorphic wetlands Unique feature Wetland type Management category Consanguineous suite Location identifier (inside/outside) 8416 Palusplain Conservation category Bennett Brook Inside 8429 Sumpland Conservation category Bennett Brook Inside 8773 Palusplain Conservation category Ellenbrook Inside 8792 Dampland Conservation category Jandakot Inside 8800 Sumpland Conservation category Muchea Inside 8914 Palusplain Conservation category Ellenbrook Inside 15028 Sumpland Conservation category Jandakot Inside 15033 Sumpland Conservation category Jandakot Inside 15260 Palusplain Conservation category Bennett Brook Inside 8541 Dampland Resource enhancement Jandakot Inside 8554 Sumpland Resource enhancement Jandakot Inside 8779 Sumpland Resource enhancement Muchea Inside 8783 Sumpland Resource enhancement Ellenbrook Inside 15752 Palusplain Resource enhancement Bennett Brook Inside 15757 Sumpland Resource enhancement Jandakot Inside 8254 Dampland Multiple use Bennett Brook Inside 8411 Dampland Multiple use Bennett Brook Inside 8438 Dampland Multiple use Bennett Brook Inside 8447 Dampland Multiple use Jandakot Inside 8449 Dampland Multiple use Jandakot Inside 8464 Sumpland Multiple use Jandakot Inside 8730 Dampland Multiple use Jandakot Inside 8784 Floodplain Multiple use Ellenbrook Inside 8785 Floodplain Multiple use Ellenbrook Inside 8936 Sumpland Multiple use Muchea Inside 13096 Sumpland Multiple use Jandakot Inside 15029 Palusplain Multiple use Bennett Brook Inside 15030 Sumpland Multiple use Jandakot Inside 15175 Palusplain Multiple use Bennett Brook Inside 15200 Sumpland Multiple use Jandakot Inside 15732 Palusplain Multiple use Muchea/Ellenbrook Inside APPENDIX B Site photographs Plate 1 Soil lithology at borehole SP1 Plate 2 Soil lithology at borehole SP2 Plate 3 Creek line running through grazing land Plate 4 Typical grazing paddock Plate 5 Low lying bushland/sedges Plate 6 Low lying paddock with surface water Plate 8 Chicken farm within the PDNH alignment Plate 9 Ephemeral water course APPENDIX C Soil borelogs Drilling Log Hand Auger Hole SP1 Page: 1 of 1 Project Northlink Owner BG&E COMMENTS Location Perth - Darwin National Highway Proj.